12743131 has 2 divisors, whose sum is σ = 12743132. Its totient is φ = 12743130.

The previous prime is 12743119. The next prime is 12743141. The reversal of 12743131 is 13134721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12743131 - 2²¹ = 10645979 is a prime.

It is a super-2 number, since 2×12743131² = 324774775366322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12743111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6371565 + 6371566.

It is an arithmetic number, because the mean of its divisors is an integer number (6371566).

Almost surely, 2^12743131 is an apocalyptic number.

12743131 is a deficient number, since it is larger than the sum of its proper divisors (1).

12743131 is an equidigital number, since it uses as much as digits as its factorization.

12743131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 22.

The square root of 12743131 is about 3569.7522322985. The cubic root of 12743131 is about 233.5744756448.

Adding to 12743131 its reverse (13134721), we get a palindrome (25877852).

The spelling of 12743131 in words is "twelve million, seven hundred forty-three thousand, one hundred thirty-one".